About: http://webisa.webdatacommons.org/12957525

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Each of first and second shells 2, 5 and actuator 53 are preferably made of biocompatible material, such as surgical grade titanium or surgical grade stainless steel.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com